Phonograph.



C. F. HAMILTON.

PHONOGRAPH. APPLICATION FILED DEO. 30,1908.

Patented May 4, 1909,

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2. neetion with the aeeompa-nying drawings and VUNITED STATES PATENT, OFFICE.

CLAUDE F. HAMILTON, OF ATHENS, WISCONSIN, .XSSIGNOR Ol ONE-HALF TO JOHN G. NUERNBERG, OF ATHENS, WISCONSIN.

PHONOGRAPH.

vN0. 920,134. Specification of Letters Patent. Patented May 4, 1909. Application led Decembei 30, 1908. Serial No. 470,081.

l'o nl! who/m il muy ronceri: l 'lhe peripheral edge oi' the wristlaste is Be it known that l, (lLAinn F. llAini'xioN, i provided with a noti-h 6whieh not(` i is dea eitiZen ofthe [init-ed States, and resident oiI signed to be engaged by one end ol' bolt 7 be- Athens, in the eounty ot' ;\'l:iratlion and State ing!` :slidabllir mounted in ear extensions oi' the .i oll Wiseonsiinv have invented Certain new and 'l basoplate- 'lhe opposite end oll the bolt 6') usei'nl improvements in Phonogi'aphs; and l i earrios a pin i) that is iiiied within the slotted 'do liereb declaro that the following is a i'ull. end oi' a lever it), the latter beingr pivotalhv elear, and exact deseription thereof. i hung upon a standard il, whieh rises troni 'llie object ol' my invention is to provide t the base-plate. A eoil-spiiiigf l2 is eonne'etsimple and durable automatic stop-ineelinn-l ed lo thelower arm oi the lever l() and a 63 ism l'ordisk phonographsorlikeinstruments, iixed `stud l' rarried b v the basoplafte, by the stop-ineehanisni being controlled by the on the bolt 7 i, means oi' whirh spring-eonnerii swinging-arm with which said instruments l is held against the peripheral edge oi' the are provided, .whereby the disk is cheeked \\.ristplati. A slotted tappet-linger .4 is against rotation when the fswingfingdirni has l seeurod to the end ol' the upper arm oi' lever 70 reached the end ot the reeoi'dupon said disk. l()` by means ot :i tliunib-sireif i5, which The invention therefore consists in certain srrew passes through the slot in the tappetpeeuliarities ol construction and combination ol parts as hereinafter described in eonfinger and an aperture in said lever, 'whereby said tappetdinger ma): be adjusted relative to the movement ol'. the s\viiif,;iiig-iiiiii with 75 subsequently claimed. whieli it has engagement when tin` latter has ln the drawings: Figure l represents a moved to a. position where :i reeord upon the )lan View ot' so much oll a disk phonograph as i disk is approximateliY eoneluded. is neeessarr to illustrate its eonneetion with When it is desired to eliminate the anto :t an automatic stop-meehanisin, embodying i matie stop-inerhanisni, in ease oi' a repeater- 30 the features ol' my invention, which stopn'ieehanisni beingl used in eonneetion with mechanism is shownattaehed to the bonr ol' 'i the instrument, it ran be readily eii'eetrwi by ay t-lieplionograph withpartsbrokenawayand spring-eontrolled dog; iti, whieh dog, as parts in section, to more clearly deline the l shown, is arranged to engage. a notch 17in structural features, and Fig. L2, a sectional the wi'ist-plate,the engagement beingaeeonv' 40 the top of the box A, is a base-plate l, upon elevation ot' the same, as indicated by line i plished by means ol' a handle in Carried by 2-2 of Fig. l. i said wrist-plato i'oi eonvenienee in rmolvini;w

Referring by eliaraeters to the drawings, the latter until the notch i7 and nose oi the A indicates a portion ot' a phonograpli-box l dog; have registered. ltwill be observed containingthedriving-inerlianismotareeord l that when this shil't oi' the wrist-.plate bj.' lE

-disk B, and 3 indicates the usual swinging hand takes plat-e, the brake-sl'ioe is carried arm, which arm carries the diaphragm-heatl, away l'rom the reeord-disk and is locked. (not shown) the arni being swiveled in a 'lhe handle 1S is also utilized to resetthe Standard E attached to the box. Secured to w rist-plate ai'ter eaeh automatic stop, the set beni;v eiieeted by turning said wrist-plate so which is revolubly mounted a wrist-plate 2, as tri-move the brake-shoe from its engaged the latter' being trunnioned upon a stnd 3, position with the adjarent edge ol the disk, last in the base-plate, and provided with. a and with this movement it will be seen that this bolt T will loi-k in its noteh (i, and the delicate tlat coiled spring 4. 'lhe spring is (liek beingl i'ree to revol\'ethe instrument 100 wound under slight tension and its outer i will start.

end is-anelior'ed by a stud which projects i From the foregoingr it is apparent, that 'from the wrist-plate. A pin 5 extends lroin should the parte be in the position shown in the said wrist-plate upon the same approxi- Fig. i, the record disk will revolve and move mate plane as the disk ll and adjaeent its l kei'fed head for the reception of one end oi' the swingingmrni towards the tappet-tingei'. 105 oii'oumlei'ential edge, the pin being provided i Now when the arm has approximately coinwith a jacket ol' rubber or other suitable l pleted its movement, it will strike the tapiibi'ous material constituting a brake-shoe, pel-linger, whirh movement in turn causes., adapted tobe t'oreed against. ilie edge ol' said i the bolt lo withdraw l'ioni its notch in the 3f" disk. wrist-plate and thus permit eoil-spriiig 4 to tion consequently has the .movement of the wrist-plate.

rubber j acketed )in into t'rietional 'engagement with said ish. This 1s due to the tact that the disk and wristlate 2 are revolved in the saine direction, tie rotation ot' said dist. tending t0 crowd the pin toward a radial line intersecting the axis of the aforesaid disk and Wrist-plate. The engaging aceti'ect ol' cramping jacket being the lock is obtained sprin r-eontrolled y utilizing the s ring-pressure as a motive power to onl t irow the pin into engagement with the dis it'will-be seen that the force refliuired to trip said spring will be materially essened, whereby no detrimental eti'ect is had upon the motion oi' the horn, which motion is acquired through its needle engaging the ininute spiral threads ol' the dish. The swingttrm can after being stopped then be moved over to the starting-position, and the auto- 'matic stop-mechanism being reset, the inthispin, a yield of its rubber result, whereby a positive independent ofI the initial strument is again ready to be put in motion.

By employing an automatic mechanism, as shown and described, it will be understood that damage to the record-disk and inachine is avoided.

I claim:

1. In a disk phonograph having a swinging-arm, a spring-controlled rotatory wristplate disposed adjacent to the `edge oi' the phonograph-disk and adapted to have rotation. in the same direction as the latter, a,

brake-shoe carried by the wrist-plate lorengagement 'with the edge ol' said phonographdis i, means for locking the wrist plate,

whereby the brake-shoe is held troni engagemont with said dish, and a tanpetv inv connection with the disk-lochin f means in the path of travel of the swinging-arm, whereby re- 'lease of said ylocking means is ellected when said swinging-arm engages the tappet.

2. In -a dish phonograph having a swinging=arni; an attachment comprising a rotatory spring-controlled notched wrist-plate t fe of the phono- I lave rotation in the saine direction as the latter, a brake-shoe disposed adjacent to the ed graph dish and adapted to carried by the wrist- )late for en agement with theedge ot sai phonograplgi disk, a spring-controlled bolt for engaueincnt with t ie notch in said wrist-plate, a over in connection with the bolt, and a tappet carried by not dcpendthe lever, the tap et being arranged in the g path ol' travel oi' tlie swinging-arm;V

` ln a dist: phonograph having va swin ring-arm, an attachment comprising a rotadisposed adjacent tothe edgeY oi' the p lionograph dish and adapted to have rotation in the saine direction as the latter a brake-shoe tory spring-controlled notched Wifist-ph'itiy mounted upon the ,base-plate, the"wrist i an adfustable ta p pet said base-plate, and

.in thel path et j carried by the lever dispose. l travel ol' the swinging-arni.- y t 5. ln a dish phonograph having a swinging-arm, an attachment comprising a pivotl ed wrist-plate located adjacent to the edge ol thtx phonograph disk, a brake-shoe in connection with the wrist- `)late i'or engagement with the phonogral'ih di/sk edge, an actuating spring lor said wrist-plate adapted to exert power thereon in the saine direction as that ol' tlievtiavel olI the phonograph disk, 'a locking mechanism for the wrist-plate, and l releasing means in connection therewith disl posed'in the path ol' travel ol the swinging- I arm ol the phonograph.

In testimony that l. claim the foregoing l have hereunto set my hand at Athens, in the county el' Marathon and State oi' Wisconsin in the presence of two Witnesses.

CLAUlfill F. llAlvill/lON l Farina lt. iinsan, i J. t). Nnnaiinnne.

toi'y sprinU-controlled notched wristeplate' phonograph disk, al

late bein f dis iosed ad'acent tothe edee ol" P t l the bolt in pivotal-connectionI with-the aiioi'e- 

